Abstracts

TUAP055 (Poster)

Plans for the Spallation Neutron Source Integrated
Control System Network (*)

W.R. DeVan, E.L. Williams Jr. (ORNL)

Controls for the Spallation Neutron Source (SNS) will be implemented using an
EPICS-based distributed control system. The SNS controls communication network will take
advantage of new, commercially available network switch features to increase reliability
and reduce cost. A standard structured cable system will be installed. The decreasing cost
of network switches will enable SNS to push the edge switches out near the networked
devices and to run high-speed fiber backbone communications all the way to the edge
switches. Virtual Local Area Network (VLAN) technology will be used to group network
devices into logical subnets while minimizing the number of switches required.
Commercially available single-board computers with TCP/IP interfaces will be used to
provide terminal service and remote power reboot of EPICS I/O controllers.